COLOURED SAPPHIRE AND DIAMOND RING Cushion-shaped pink sapphire of 6.09 carats, pear, cushion and circular-cut diamonds, gold, ring size 6 SSEF, 2018, report no. 102415: approximately 6.1 carats, Madagascar, no indications of heating Gübelin, 2015, report no. 15105269: 6.09 carats, East Africa, no indications of heating US$150,000-230,000